Stump grinder



FIG. 1 is a perspective view of a stump grinder in accordance with the design of this invention;

FIG. 2 is a plan view of the stump grinder of FIG. 1;

FIG. 3 is a side view A of the stump grinder of FIG. 1;

FIG. 4 is a side view B of the stump grinder of FIG. 1;

FIG. 5 is a front view of the stump grinder of FIG. 1; and,

FIG. 6 is a rear view of the stump grinder of FIG. 1. 

The ornamental design for a stump grinder, as shown and described. 